code: def __init__(self, faulty: bool = False) -> None:
      self.objects = {}  # type: Dict[Tuple[str, str], str]
      self.faulty = faulty
  
file_path: determined/harness/tests/s3.py
imports: from typing import Any, Dict, List, Tuple
  import boto3.exceptions
label_desc: Use image node_id 1 to create a new MockS3Client object  with example: obj = MockS3Client(faulty)